#include using mercury::syscall::encoded_color; using mercury::syscall::color; encoded_color *fb; uint32_t fb_width; uint32_t fb_height; uint32_t fb_pitch; int main(int, char **) { mercury::syscall::get_framebuffer(fb, fb_width, fb_height, fb_pitch); for (uint32_t y = 0; y < fb_height; ++y) for (uint32_t x = 0; x < fb_width; ++x) { color c = { .r = 0, .g = (uint8_t)(y * 255 / fb_height), .b = (uint8_t)(x * 255 / fb_width) }; fb[y * fb_pitch + x] = mercury::syscall::encode_color(c); } mercury::syscall::draw_framebuffer(); return 1 / 0; }